Previous winners include Terry Pratchett, Ian McEwan, Marina Lewycka, Paul Torday, and DBC Pierre.

BBC: Howard Jacobson

Previous Richard Dimbleby lecturers include the Prince of Wales, Bill Clinton, writer Terry Pratchett and Dr Rowan Williams.

BBC: Bill Gates to deliver Dimbleby lecture

Other previous winners include Philip Pullman, Anne Fine, Terry Pratchett and CS Lewis.

BBC: Roddy Doyle up for Carnegie Medal

Best-selling novelist Terry Pratchett was diagnosed with early onset Alzheimer's disease last December.

BBC: Dementia patients 'suffer stigma'

Other awards saw wins for Gareth Malone who was named best presenter for his role in The Choir: Military Wives and Terry Pratchett: Choosing To Die, which won best single documentary.

BBC: Fred West drama Appropriate Adult wins RTS awards